Electrotherapeutic apparatus



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ELECTROTHERAPEUTI C APPARATUS Filed Nov l2 3.921

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i naar stares EUGENE a, .or Los anennns, oanrronnm.

ELECTROTHERPEUTIC APPARATUS.

Application med November l2, 1921. Serial No. 514,570.'

To all wwm z't may concern.'

Be it known that I, EUGENE Ana, a citi- Zen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in- Electrotherapeutic Apparatus, of which the following is a specificatie- My invention relates more particularly to electrode holders or handles to which the electrode or vacuum glass of electrotherapeutic apparatus may be conveniently Aattached and which forms a casing for the insulating material t0 the end pieces will be dispensed with, thereby eliminating the expense othreading these parte.

Still another object of my invention is to provide a convenient socket connection between the holder and electrode which will insure a perfect electrical connection as well as prevent the twisting or turning of the electrode in said connection.

The above and other objects of my invention will be more speciiically ointed out in the following description, an illustrated in the accompanying drawings, in which:

Fig. 1 is a longitudinal section through a holder showing the detail construction of my invention.

Fig. 2 is an enlarged transverse section through the holder taken on the line 2- 2 of Fig. l. i

Fig. 3 is an enlarged transverse section through the holder taken on the line 3-3 of Fig. 1.

In carrying out my invention 5 represents a stay or binding member which `for convenience of construction com rises a tube formed ,of insulating materia adapted to receive the rimary and seconda windings 6 and l; of the induction coil. The tubular stay bolt 5 is interiorly threaded at its opposite ends to receive the threaded plug members 8 and 9, the plug 8 being located agijacent the electrode end of the holder and the plug member 9 being located adjacent the electrical energy supply end of the holder.

The end 10 of plug projects out from the 'stay member 5 and is frusto-conical in shape,

and said plug 8is provided with a centrally disposed bore into which is pressed an. iiiterlorly threaded sleeve 11 of brass or other electrical conductive material, said sleeve abutting against a shoulder 12 formed in said bore adjacent its outer end.

An end cap 13 is spaced apart from the plug 9 and held secured thereto by means of a pair of binding posts 14 and 15, said end cap being provided with a centrally disposed aperture for the admission of the lead wires 16 and 17 which are secured to said binding posts by means oit the binding screws 18 and 19, the leads from the primary winding 6 passing through apertures in block 9 and also beingsecured to said binding posts by means of the screws 18 and 1 The sleeve 11 is provided with a longitudinal saw cut 20 into which the lead from the secondary winding 7 is disposed and soldered therein, thus forming an eiiicient electricalconnection4 to said sleeve.

The cap 13 is provided with a socket 21 adapted to receive one end of the outer tubular casing 22 which is formed of insulating material and adapted to surround the tubular stay member 5, said end abut-` ting adjacent said end cap.

An end or nose piece 23 formed of insulating material is provided with a bore 24 extending inwardly from its outer end, for a suitable distance, and a bore V25 of smaller diameter connecting with said bore toform a shoulder'QG. The bore 25 communicates with an enlarged bore 27 adapted to receive the-end of the tubular stay member 5 and the end 10 of plug 8. The bore 27 is enlarged at 28 to receive the forward end of the tubularcasin 22 and to form a shoulder 29 against whic said end is adapted to abut.

. A metallic conductor sleeve or socket 30 preferably formed of brass, is secured in the bore 2,4, and is provided at its inner end with an inturned flange 31 adapted to rest against the shoulder 26 of end or nose piece 23. A screw 32, preferably formed 'and adapted to engagewith one of itsends,

' stern a brass sleeve 36, having formed on its' outer surface a-in 37, adapted to engage in a slot 38 formed in conductor' sleeve 30, in order that'the electrode will be prevented from turning when socketed in said conductor sleeve.

In order that the hand of the operator may be additionally protected a sleeve 39 of soft rubber may be slipped over the casin sleeve 22.

y the foregoing `recited construction it will be obvious that all of the parts are held firmly bound together` by the screw 32, and

perfect electrical connections are made, and by removing the electrode 35 and engaging the screw head 33 with a screw driver, the screw 32' may be removed, thus permitting the ready removal of the end or nose piece 23 and the casing 22. The end cap 13 and the plug 8 access to the coils and tions and units may be had.

What ll claim is:

l. An electrode holder, comprising a pair of end pieces, a casing interposed between said end pieces, a stay member mounted in said casing, and means for removably securing said end pieces to said stay member,

whereby said casing may be firmly bound between said end pieces.

2. An electrode holder, comprising a ca sing, a stay member mounted 1n said casing and adapted to engage with one of its ends, I

a nose piece adaptedl to engage with the opposite end of said casing, and means for vdetachably securing said nose piece to said stay member. A.

3. Anelectrode holder, comprising a casing, a stay member mounted in said casing may then be readily removed, and allv electrical connecmeedeed a nose' piece adapted to engage with the oppositejendof said casing, .said stay member ,being provided "with a centrally disposed threaded aperture and 'said nose piece being provided' with a centrally disposed' a erture adapted to Y.register with said st mentioned aperture and provided with a shoulder, and a threaded member adapted to engage with said threaded said shoulder.

'4. An electrode holder, comprising a c asing, a stay member mounted in said casing,

aperture and one end of said stay member being adapted to engage with oneend'of said casing, said stay member having formed in its oppositeA end a threaded aperture, and a nose piece provided with an inwardly projeotin 4centrally disposed Athreaded member a apted to engage with said threaded aperture in said stay member.

5. An electrode holder, comprising a casing, a stay member mounted 'in 'said casing, one end of said stay member being adapted to engage with one end of said casing, said stay member being provided'at itsopposite end with a centrally disposed r threaded sleeve, a nose piece adapted to en' age with the opposite end of said casing an provided with an electrode receiving socket, a sleeve provided with a slot secured in said socket.

-and having a shoulder formed alt its inner end, and a screw adapted tlc engage 'with said shoulder and threaded s eeve. v

tubular handle formed of an ins ating'material,

6. -lin'a high frequency apanatuaa a transformer mounted ther `n, a nose piece formed of an' insulating material havinga centrally disposed electrode receiving socket formed therein, a metal contact sleeve mounted Yin said socket, and an electrical conductor for detachably securing the nose I piece to electrical connectionbetween the contact sleeve and said transformer.

ln witness that I claim the foreoing ll have hereunto subscribed'my. name t day of October, 1921. 1'

. j EUGENE ABA. C

said casing and for forming an. 

